Rail-boring blowpipe.



P. LULLI; 1 RAIL BORING BLOWPIPE. APPLICATION FILED JULY 28,-1909.v

1,004,179. I Patented Sept. 26, 1911;

:i ,connai narran sirArnsrA'rnN'r yorsi-cn. y

PRIMO LULLI', or MILWAUKEE, WISCONSIN, AssIGNon To "rmiA AMERICAN o xII'YDRIc COMPANY, CORPORATION OF WISCONSIN.

RAILBoRINGBLoWPiPn. BEST AVAILABLE `COP-.f

1L '0 all whom' 'it may ron-cern.'

Be it.v known that l. lPlinio LULLI, a subject. ot' the King of italy. residing at Mllwaukec. inthe county othfli-lwankee and Slate ,ot lilisconsili, haveI invented. certain neu' and useful Improvements in Rail-l5or ing lllovvpipes, of which thefollowin'g is a zt'ull. clear, andexact description."

This invention relates toa method ot and device for making or boringvholes'iin rails,

beams, and iron bars of any kind by means ot a heating Jet andan oxygen ]et.

One purpose of my inventionv iSv-to seciuc simple and convenientnieans for boring holes in rails, said-meansbeing adapted .to lie easily centered with relation-to thexliolev which is Vto be bored and to remain in working position even when a trailrispassing over the-track, andvitla said objectin view my cou'ibinations of parts and .arrangements of cooperating elements as `will behereinaft'cr fully described and pointed 'out intlieappended claims.

Referring to the annexed drawing: Figure l is a side View of a device constructed according to my -inventionsald devicebeing tixed to a rail and being shown in its working position. jl`ig. 2is a transverse section stop valve 5.

Aelli In said tigures 1 isa tubc'provi'ded with a nozzle Y2 acting as a ,heat-ing vdevice or burner when lav suitable' gas passing' through they tube 1 is ignited at the orifice ot' the nozzle 2. 23 is a-n oxygcnpipe or tube, provided ivith a nozzle lfand' with arock or` Said tubes lxand 'are mount#` ed. in a cylindrical member or plug G adapt-- ed to rotate ivitliin a bearing 'i'V which is' provided with a rod 8 passing through a sleeve or collary 9 arrangedviit one end of a supporting arm 10; The position of rodSin the sleeve 9 can .be easily vcontrolled by invention essentially consists'in special` speia'cation'of Lettersratenf. Applicationled July 28, 1909. Serial No. 510,084.

Patented sept. 26, 1911.

tle friction in 4saidplug and provided with a point 21 at one end, and With-a' knob Q2. at the other'end. Y

When. the device just described is to be used to bore a liolein a -rail it' is fixed to said railv as shown in Fig. l, the shoe V14: of

the rail being engaged ,between tlie hook 12 and the sliding block- 13 which is then clamped by aid `of the screw 15. Theposis tion or elevation ofthe bearing' 7-is then adjusted,'by means .ofthe rod 8v and the screw' 11 in such a manner that the point 21 of rod 20 exactly corresponds with the center of the hole Awhich isto be bored, said 4center having been Vpreviously rtraced or marked in the rail in the iisual-Inanner, suchY as by meansof a" punch for instance. YVhen the exactposition of the center of the vplu 6 has thus been exactly determined,the ro Q0 is. `displaced axiallyV and removed from the railfin vorder to avoid the deterioration of the point 21 under the actionof the heating and perforatin jets.- `The heating gas.

and a current 'of 1 oxygenf under- `pressure --is lsentthrough the tube .3 andinozz'le 4. Simultaneously` the plug 6 is slowly ,rotated in the' bearing 7 -bykmeans=oftlie handle 117, the

vhole being boredin tlie raill according to the .Well-knownmetlibdfoi boring'and cntting iron and' "s'-`t.ee`l by-means of aheating jet vcoliper-ating with an oxygen jet." f

is then ignited at: r-t ie orifice-ofthe ,noazd 2, a

As it will'appea'r; from .the drawing,ithe' i device can. be tixedfin-"worlcing `position andv an remain in said'pos'itioneven vljen a train or a Vvebicleis passing-over the'trck and'wit-hout it being necessary to remove the device at each passa-ge oftlie .trainl or vehicle, as indeed the device has'fno parts projecting above the trackl and'fis placed laterally to said track. n .-1 The operation ofthe device' is as follows: The supporting arm 10 'is' fi1"st'clan1p'ed to the rail to be boredor to vsome other suitable support ;`the bearing 7 is next adjusted ver'- tically into position by laid of the point or pointer 21 which is extended toward the rail and moved up ordown and laterally,- sircd, until its extremity is substantially in apposition with the center of the hole to'be bored. The bearing is then clamped in such position, and the point 21 is Withdrawn longitudinally some distance from the Inaterial. The gas burneris' the oxygen jet turned on'. Thereafter. the

. means, said jetsbeiug adjustable withrespeet ieteusely hot jet impl iges upon the spot to 3 'l .ool'edI or itiich is being bore and fuses (mused to rotate moe on. the exis of the bearing, m the otheiz, which results m e e rapidly about direction o1' lug a piraclieally perfectly round bore is toe teil. j The method of boring involved ui "'b :oiesent wie@ is tmletore quite different om the ier-wiel method of .opeietii'lg blew-pipes und be like, in which the ame is sdi/'eneed l .he liliewhiel'z is 'to be cut Whet et' the litter be straight or ei'eul.i; the out being miimv. the pi'eseut method, ou the other mld, the 'dame iseehtereti so that the axis iereo'l is sibstsutieiljgf coincident with that il' the hole to be bored; and the flame is then rotated .about this exis afnd dees not travel u long e line, nor malte e iiarow cut.

le. peitetiee it. has been found extremely dillieult te 'feint perfectly ei; lez jet of li'ame,`peeteultuly when the jet type in question, and 'for this reu jet he held ixedly in one A`position' the, .5.1 mit will be more or less oval or iii'ego but by fotetihg the jet in the nimmer t A@ fibed' a tiulv eireutmi #smell diametere: hole is pi'op v lim/'mg thus described my invention, what l claim is:

l. in a device of the kind described, e Meting' jet, an oxygen jet, means for center ing seid jets upon a point to be heated, means lol' rotatihg'seid jets about am axis which passes through said point, aud wsupporting structure eopeiutiiig with seid centering i l t lo e portion et said sujzipoi'ting structure.

ln devicel 'of the kind deseilbed, a heating jet, en oxygen jet, supporting means BEST AVAlLA'BLE COW" fos' said jets adapted to direct seid jets tof1 Weed e point to be heated, und means'for ieteting said jetsebout im axis which passes through said point,

ln s device of the kind described, supporting means, adapted to be fixed to a, rail or iron or steel bar, e bearing adjustable on the supporting means, e plug supported in said bearing and. adapted to be rotated therein, a heating burner and an oxygen jet, both eariied by seid plug. l

ln combination, a tube for a heat-ing gas, a tube foi. oxygen, a member carrying both tubes, means for i'otating said member, :i centering rod passing through said membe?, means for adjusting the height of said member and av supportingerm caiiying seid member and adapted to be fixed to a mil or other bur. I'

5. n combination, la tube for e heating gas, a tube for oxygen, a plug carrying said tubes, a centering rod sliding with friction through said plug, :i bearing in which said plug is adapted to lotste, means for adjust ing the elevation et seid plug and zi supporting arm adapted to be fixed to a igail or other bei, The method of boi'irig relatively smell eiieultu' holes or recesses in fusible material which comprises directing fusing flame upon the point- Where the axis of the hole to be bored passes through the suface of the material and rotatingseid ame about said exis. i v

ln wit-hess whereof, I subscribe my sigue ture, in the presence of two Witnesses.

j PRIMO LLL.

Withessesz j J. GRANVILLE .ls/MYERS, Simms L. CRAWFORD. 

